空气—乙炔原子吸收分光光度法测定大气污染源中的镉含量

Flame Atomic Absorption Spectroscopy Determination of Cadmium in Flue Dust with HNO 3 and HClO 4 Digestion.

本文研究了硝酸高氯酸体系消解火焰原子吸收法测定烟尘颗粒物中镉的方法。方法的检测限为３×１０－６ｍｇ／ｍ３（采样体积１０ｍ３）。实际样品测定的相对偏差小于１０％，加标回收率大于８８％

This paper studied a cadmium FAAS method for flue dust samples with HNO 3 and HClO 4 digestion.The detection limit in air is 3×10 -6 mg/m 3(sampling volume is 10m 3),R.S.D is less than 1 0% and sample recovery rate is more than 88%。